Mounting for oil filters



Filed Aug. 17, 192"! l:i I; I %.W 4 m a m J ntoo Q Patented Oct. 8, 1929 :UNITED STATES PATENT OFFICE ALBERT CHAMPION, OF FLINT, MICHIGAN, ASSIGNOB TO A C SPARK PLUG COMPANY, OF FLINT, MICHIGAN, A COMPANY OF MICHIGAN MOUNTING FOR OIL FILTERS Application filed August 17,1921- Serial No. 213,686.

This invention relates to a fluid pressure system and more particularly to a mounting for a replaceable filter unit forming a part of the system.

The invention is especially adapted for use with a pressure lubricating system of an internal combustion engine,- and for purposes of disclosure will be so described herein, although obviously it is capable of employment with other types of machines and in various other connect-ions.

As at present constructed, the pressure lubricating system of an internal combustion engine comprises a pump located in the engine crankcase, which forces oil to the several bearings, from whence the oil returns to the crankcase for recirculation. To increase the life or usefulness of the oil, it is customary toefiicient cleansing action, the filter element must be renewed.

One of the primary objects of the present invention is to provide an improved mounting by means of which the replacement of a filter unit in the system in proper operative.

position may be quickly and readily made.

Other incidental objects and advantages .will be apparent from the followin detailed specification, having reference to t e accompanying drawing, in which Figure 1 is a side elevation of an lnternal combustion engine with which 1s assoclated an v011 filter mounted in accordance with the present invention; Figure 2 1s a top plan view partly in section,

showing theoperative relation of the parts; Figure 3 is a'section on line 33 of Figure 2, and Figure 4 illustrates a slight modification of one of the supporting members.

In the drawing, reference character-1 indicates the crankcase of an internal combustion engine of the type employedfor'propelling motor vehicles. Preferably cast integral with the side wall of the crankcase 1, are a pair of laterally projecting lugs or supporting members 2 and 3, between which a replaceable filter unit 4 is clamped. The particular filter unit to be employed, not form ing any part of the present invention, has not been shown in detail: Briefly, it comprises a sheet metal container having the inlet and outlet in one end, and within which is located the filtering element, the idea being to provide a low cost filter which may be discarded after it has served its periodof usefulness.

In order to clamp the filter unit in place,

the screw threaded stud 5, carrying a lock nut 6, is adjustably threaded into an aperture or opening in the lug 2, for movement toward and from the lug 3, and which by its adjustment, acts through thespider. or pressure distributing element 7, engaging the end ofthe unit 4, to clamp the unit against the face of the lug 3. The end of the filtering unit engaging the lug 3, is provided with a protruding head 8, having a central bore 9 therein leading into the filter. This head 8 is adapted to extend into an opening 10 in the face of the lug 3, to enable the bore 9 to communicate with a passage 11 drilled through the In and which for convenience, may be- .termec the inlet passage, since the fitting 12 threaded into the end thereof, connects the conduit 13 leading from the pump, to deliver oil under pressure to the filter. The filtered oil returns through the outlet passages 14 and 15 to the sump in the crankcase. The outer ends of the passageways 11 and '15 are closed by screw threaded studs 16, which may be readily removed to facilitate access to the passageways for such inspection, cleaning or repairs as. may become necessary during use. To seal the system against leakage, a gasket and washer 17 is preferably inserted between abutting portions of the lug 3 and filter 1 unit 4:.

In certain installations, it has been found the inlet and outlet passageways 11 and 15, and which is normally closed by a ball valve 19, held against the seat 20 by a spring 21 resting against the plug 22. When such prov sion is made, clogging of the filter will .90 desirable to provide a by-pass 18 connecting cause the ball to unseat and permit the oil to flow directly to the passageway 15. \The plug 22 in this case, may comprise a well nown type of test fitting, which embodies ithe system.

a screw valve 23. Unthreading of the screw .23 allows oil to drain ofl, thus indicating the proper functioningor circulation through V In lieu ofeasting the su porting lugs integral with the crankcase, t ese lugs may be formed separate and later bolted in the side of'the erankcase,- as is shown in Figure 4:.

Here the era'nkease'wall 101 and thelug 103 are provided with aligned openings, or pasfsageways'l-ll and 115, and the lug is fastened in place-by bolts 124:,'passing through apertur.,.d' flanges on thelug and into threaded engagemenflwith the wall of the erankcase.-

While the foregoing description :has been more or less specific, it is to be understood "that the invention is not limited to the exact rap ended claims.

details, but that such various modifications maybe made as come within the scope of the aving described my invention, ll claim 1. In a fluid pressure system, means to removably insert in said syst'em a replaceable filter having inlet and'butlet openings in an end wall thereof, including a pairbfspaced supporting member's, adjustable means associated with one 6f said members to detachably clamp a filter element between the members, and a pair of passageways associated-J with the other of said members,- and forming a part of said fluid system and adapted for com-v munication respectively with the inlet and outlet openings in the, end wall of the filter.

.' 2. In a fluid pressure system,'means to removably insert in said systema replaceable filter "unit, having inlet and 'outletopenings in an end wall thereof,'including a pair of spaced supporting members, a screw stud having threaded engagement within an aperture in one of said supporting members for ad ustment toward and from the other memher. and adapted by its adjustment to engage with one wallof the filter unit and clamp the wall having the inlet and outlet openings against'the other of said members; and a pair of passages formed in the other of said r tween the supporting outlet end of the ,filterunit. and apressure distributing element interposedb etween the" opposite end screwi of the filter unit l andisaid set 5'. In a' pressure 'lubrlcatingsy'ste'm for mternal combustion engines and the like, means to removably .insertalaifilter unit: therein? 1neluding a pair of spaced lugs projecting lgt-j;

erally fromthefside of the engine housin tween-which a filter unit is to be securedyonej of said lugs-having a pair of 'apertures there in through which lubricant in the: system is forced, said apertures being adapted for communication with the inletand outlet respec-' tively in aniend wall of the filter unit tobe supported, and a screw stud adjustably threaded in the other "of said lugs and adapted to"engag'e.- withi-and clamp a filter unit v against the first' mentioned lug.

Intestimony'whereof I afiix my signature, l ALBERTCHAMPION; v

' members and adapted for communication with the inlet and outlet openings respective in the adjacent wall of the filter supported a '3' between said members.

' 3. Means to removably insert a replaceable filter unit, havingitsinlet and outlet in one I end wall thereof, in" a -fluid-pressure system,

,tion'with the inlet and the'filter unit. is,

4. The 'struetureset forth in'claim 3 and a sealing gasket. mdgptet ipr; interposition beas I 

